Method for making points for the ends of rods and the like



A. W. KEUFFEI..

Filed May 25, 1934 INVENTOR O ADoLF w. KEUFFEL BY CQ ,1M www ATTORN EYJune 14, 1938.

METHOD FOR MAKING POINTS FOR THE ENDS OFODs AND THE LIKE Patented June14, 193s y ,i 2,120,806

UNITED STATES PATENT oer-Ice METHOD FRy MAKING POINTS FOR THE ENDS vOFRODS AND THE LKE Adolf W. Keufel, Montclair, N. J., assigner to Keuffel& Esser Company, Hoboken, N. J., s. corporation ol New IJerseyApplication May 23, '1934, Serial No. 727,051

f 6 Claims. (Cl. 29-148.2)

This invention relates to c. method for making into a. cylindricalportion 9 with a. frusto conical points for the ends of rods suon assurveyors end Hl... The opposite end Il ls of reduced diranging` polesand the like, Jecolos otos, the legs /ameter to form e, shoulder lll,which is relieved of tripods and similar articles reoulrlne; sharp onthe inside otubuler bore lll. l sleeve or and herd points. tube lll of osofter steel receives the end ll of g Heretoiore, polnts for rangingpoles, lor lnthe shoe tl and extends to shoulder l2. For constance, havebeen made by forming o steel tube venience in handling, particularlyduring menuportlon et the lower end of the pole :luto o te.- lecture,the tube is secured to the shoe, es loy snot Bering shore which ls thusburdened. welding et o few points although, obviously, the

10 The present invention seelrs to prelude c, enero ports may ceassembled with o drive llt or, l E@ end for articles or the clrcrocterdeserto-ed ln necessary, een be held together with e, rivet or which eVthinner walled tulouler portion may be' two. y used without sucrltlce ofstrength; ln velden the The point is theo formed und assumes 'the pointmoy be readily formed end ls console o shape lllustroted ln Figures 2und 3 preferably being hardened by o simple swsglug onerotlon byoswogingoperation in which the shoe will od- 15 forming the point to the desiredshone end just itself ley reason of the hollow `ocre lll and whichpermits the use ol e. pollu; et u. herder will oe elongated into thedesired tapered point materiel, when desired. when subjected to thehammer blows of the swee- Anotloer object of the lnventlon ls to orovldelng machine. The tapering; shone commences 2o on ellsteel pole 'whichshell lle no heerler than preferably e, short distance below the upperend @o e Wooden pole. rlccordlnelf, o tuloulcr pole ls of the tubularshoe port ill so that tlre upper end provided which is corrugatedwhereby e thinner of the tubular shoe port lil ls cylindricalwitlovvolleel tube roer be treed llovlogg the requisite in thetelescopios tubular portion lll und su strength., n even strongersection lseorded et tllepetrt Where lt is oleo en oloject of tlrelnventloo to provide the taper begins theo where the shoe port ll g5 lorthe e-l'ectlve securing el the point the terminates exactly et thebeginning 0l? the M1331?,

' tubular portion et the lower end or the pole. es shown ln lll-ligureIl. Since the tulculor shoe tlois end, the tulouletr end ot" e, Loolntmember or portion tl sres outwardly ln on upwardly dlrecshoe lstelescoped within the tulouletr portion und tion with the end of tlletubular portion ld or ll the ove'lourine parts are then Shared to oteuer constructed tnereebout, the two ports cre lnter so and are theebylteloked 'EIHS; Spfsll'-JAQ. locked and Sepgurgtn pyvenedu These andother Qbjefts Off-th@ memmn mld operation effectively shapes thetelescopio@ parte the Ineens for their attsmrneut will oe morel c o- 30mme form even when a corrugated mbe is parent from the followingdetailed descrlptlon, @M 'nmimgnlm .Bv this method of manufacture, every superior 35 the invention muy lie realized ln which' hard mint mwbe mme by using a high carbon steel for the shoe piece whicla, afterbeing es- Fi urel lsuvie ,l l i elsectl melo ing ghe Shoe andwtueogdbefoe SWZ sembled wlth the tune and placed 1n the nesting oven, willbecome hardened, es is the clleueotering operation forming the pointtherefrom; A

Figure 2 is a View, also m longitudmm Setion. istie or nigh carbon steelwhen 1t ls cooling down,

showing the completed point applied to o tubulor @mi @his Will belomllished e@ the Seme time steel shaft; that the point ls leelngsvveged.

Figure 31s s View, ln longitudinal section, slrovv- Slt @umile- EmilionM3 (Figure 3) muy ing e modification of the invention suplico to s celvealle end of e. Wooden lee,r or pole es 45 Wooden pole; shown in Figure3, or it muy be one end of o Figure 4 is a, transverse sectional Viewtelreu ln steel tube serving as the pole, in which event, lf the planeindicated by the line d-tl of Figure 3, desired, it muy loe corrugatedfor strength, es

looking in the direction of the arrows; und shown ot ll (Figure 2)whereby e thinner Welled Figure 5 is a transverse sectional view tekenlo tube con be used. 5o the plane indicated by the line of Figure 2.Thus a hard steel point is provided which een What may be called theblank from which the be shaped so as to give the leest possibleresistshoe ls formed into its final shape (Figure 2) is ance to entryinto the ground. It is adaptable illustrated generally at 8, in Figurel. lt is pref for round poles, corrugated poles, for shoes only ereblyof cold rolled or high carbon steel turned of wooden rods, such asranging poles, for shoes 55 2 i 2,12o,soe

of tripods, Jacob's staffs and similar" articles requiring sharp andhard points.

Various modifications will occur to those skilled in the art in thecomposition, coniiguration and disposition of the component elementsgoing to make up the invention as a whole as 'well as the use to whichthe point is put and no limitation is intended by the phraseology of theforegoing description or illustrations in the accompanying drawing,except as indicated in the appended claims.

What is claimed iszl. The method of making a hard point for polescomprising forming a shoe part oi steel having a taperingend and theopposite end of reduced constant diameter, inserting the end of reduceddiameter in a tube portion oi constant diameter and forming the parts totapering shape.

` 2. The method of making a hard point for poles comprising forming a.shoe part of steel having a tapering end and the opposite endcylindrical and of reduced diameter and provided with a hollow bore,inserting said portion o! reduced diameter in a cylindrical tube portionand forming the parts to tapering shape. l

a. The manta or making a mrd point :or poles comprising forming a. solidpointed shoe part oi' high carbon steel having a tubular portion remotefrom the point, inserting the tubular portion thereof in a tube of lowcarbon steel and 'swaging the -partsto a shape tapering toward thepoint.

4. The method oi' securing together portions o! a point for polescomprising forming a point portion with an outwardly flaring end andcon- Y stricting the end of a tubular portion thereabout.

5. The method of making a hard point for poles comprising forming a shoepart with a cylindrical portion, inserting the cylindrical portion in atube portion and thereafter forming the shoe part and the tube portionin contact therewith to tapering shape.

6. The method o! securing together portions of -a point for polescomprising forming a point portion with an outwardly flaring end, thediameter of which, proximate the point portion, is less than thediameter of the adjacent portion to deiine a shoulder therebetween andconstricting thereabout the end of a tubular portion 4abutting theshoulder.

ADOLF W. KEUM

